Gas Exchange Requires a Surface That Is Both ______

question 38

Multiple Choice

Gas exchange requires a surface that is both ______.

• A) ciliated and flagellated
• B) protected within the body and connected to the circulatory system
• C) thin and moist
• D) permeable to oxygen and impermeable to carbon dioxide

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Definitions:

Synapse

The junction between two neurons or between a neuron and a muscle or gland, through which nerve impulses pass.

Axon

A thin, elongated extension of a neuron, or nerve cell, that usually transmits electrical signals from the cell body of the neuron.

Neurotransmitter

Chemical substances in the brain that transmit signals from one neuron to another, influencing various functions such as mood, memory, and movement.

Synapse

The junction between two neurons or between a neuron and a muscle where neurotransmitters are released to transmit impulses.